2. Fuel FIREWALL SHUTOFF VALVE
3. Land as soon as practicable.
d. Fuel Crossfeed. Fuel crossfeed is normally
used only during single-engine operation. The fuel
from the inoperative engine side may be used to
supply the operative engine, by routing the fuel
through the crossfeed system. During extended
flights, this method of fuel usage will provide a more
balanced lateral load condition in the aircraft. For fuel
crossfeed, use the following procedure:
1. AUX TRANSFER switches AUTO.
With the fuel FIREWALL SHUTOFF VALVE
CLOSED, fuel in the auxiliary tank for that
side will not be available (usable) for
2. STANDBY PUMPS OFF.
3. CROSSFEED FLOW As required.
With the Fuel FIREWALL SHUTOFF VALVE
CLOSED, the FUEL PRESS annunciator will
remain illuminated on the side supplying
5. FUEL PRESS annunciator extinguished
6. Fuel quantity Monitor.
9-28. ELECTRICAL SYSTEM EMERGENCIES.
a. DC GEN Light Illuminated. Illumination of L
DC GEN or R DC GEN caution light indicates failure of
a generator or one of its associated circuits. If one
nonessential electrical equipment should be used
judiciously to avoid overloading the remaining
generator. If both generators are shut off due to either
generator system failure or engine failure, all
nonessential equipment should be turned off to
preserve battery power for extending the landing gear
and flaps. When a L DC GEN or R DC GEN light
illuminates, perform the following:
1. GEN switch OFF, RESET, then ON.
IF THE GENERATOR DOES NOT RESET:
2. GEN switch OFF.
3. Operating loadmeter 100% maximum.
b. Both DC GEN Lights Illuminated.
1. All nonessential equipment Off.
2. Land as soon as practicable.
3. Fuel may be manually transferred from
ferry tanks using wobble pump installed in
the fuel pump assembly.
c. Excessive Loadmeter indication (Over
100%). If either loadmeter indicates over 100%,
perform the following:
1. BATT switch OFF (monitor loadmeter).
IF LOADMETER STILL INDICATES ABOVE
2. Nonessential electrical equipment Off.
3. BATT switch ON.
d. INVERTER Warning Light Illuminated.
Illumination of the INVERTER warning annunciator
indicates that the selected inverter is inoperative.
Perform the following:
1. Select the other inverter.
e. Circuit Breaker Tripped. If the circuit
breaker is for a nonessential item, do not reset in flight.
If the circuit breaker is for an essential item, the circuit
breaker may be reset once. Perform the following:
1. Nonessential circuit Do not reset in
2. Essential circuit Reset once. If it trips
again, do not reset.
f. Bus Feeder Circuit Breaker Tripped (Fuel
Panel Bus Feeders and Right Circuit Breaker Panel
1. A short is indicated, do not reset in flight.